What is the purpose of transformer oil?

The purpose of transformer oil is to serve as an insulating and cooling medium in electrical transformers. It helps in dissipating heat generated during the transformation process, thereby maintaining the operational temperature within safe limits. Additionally, transformer oil provides electrical insulation, preventing arcing and electrical discharge, and protects internal components from moisture and contaminants. Its chemical properties also enhance the longevity and reliability of transformers by preventing oxidation and corrosion.